EDITED: Make more clear the problem and fixed some typos in code below.

SITUATION:
This is just a demo, an example of what I'm trying to accomplish in a real project, where actually a get an array of names from a web service, I then locate the inputs with those names, select them using jQuery and then set their values (with jQuery as well).

PROBLEM:
What I need is to know how to update the ng-model of those values which I changed their value attribute using jquery

Here is a demo of what I'm trying to do. This has and input and an span binded with the same ng-model, it's supposed when you click the button, to change the input value via jQuery and then update the ng-model.

Fixed ID and added jQuery's change() which is probably what you tried to do. Below you can find your code fixed. And here is how this is usually done with AngularJS alone: https://jsfiddle.net/rwtm1uh9/